Airless tire.



i H s HAWKS AIRLESS TIRE. EPPLICATIDN FILED DEC. 7.19M.

Patented Oct. 15, 1913 ATTORNEY.

HENRY S, HAWKS, OF KANSAS CITY, MISSOURI.

AIRLESS TIRE.

Specification of Letters Patent. i

Patented Oct. 15, 1918.

Application tiled December 7, 1917. Serial No. 205,918.

To all whom, it may concern:

lie it known that I, Hnnnv S. Hnwns, a citizen of the United States, residing at Kansas City, in the county of Jackson and "Pilate of Missouri, have invented certain new and useful Improvements in Airless Tires, of which the following is a specification.

My invention relates to airless or solid tires, and among the objects of the invention, are the provision of a tire wherein the use of pneumatic tubes is dispensed with, one in which sullicient resiliency is obtained, one in which freedom from punctures, blowouts iii the like is had, and one. whereby greater cage, may be had than with the customary pneumatic tires.

In order that the invention may be fully understood, reference will now be made to the accompanying drawing, showing a preferred embodiment of the invention, and in which.

Figure 1 is a broken, perspective View, partly in section.

Fig. 2 a side elevation of a tire with its casin in section on line II--II of Fig. 1..

Ban-idly speaking, the invention may be said to consist of an outer casing provided with an inner core of relatively soft and resilient material reinforced by a pair of d'ann-tr lly opposed members of relatively "1 it? material interposed between the sides of the core and the adjacent sides of the casing tor the purpose of preventing the core from becoming distorted by use.

Referring now in detail to the various parts, 1 designates a tubular easing provided with a pair of oppositely-disposed beads 2, adapted tov be engaged by corresponding flanges of the wheel rim (not shown).

4- designates an annular core arranged within the casing and having its inner and outer peripheries 6 and 7, respectively, en-

gaging the corresponding interior surfaces.

of the casing 1. Said core 4 has a pair of iimiositely-disposed, annular grooves 8 approximately semi-elliptical in cross section to receive-a pair of reinforcing members 10, provided for the purpose of sustaining the core and preventing it from becoming unduly distorted.

Thecore 4 is, refe'ably, made of'rela' tively soft and resilient rubber, while the reinforcing members 10,are preferably, made diii'erent parts,.an' opening is left all around the periphery of the casing to permit the insertion of the core 4 and the reinforcing members 10, after which the parts are vulcanized to each other, said opening in the casing being closed and sealed by the vulcanlzingproc From the "foregoing; description it is apparent that l: have produced a composite tire, the core of which readily absorbs all shocks received by the casing and yet at the same time is protector l. from undue compression by the reintoreinp members 10, which latter, while having a certain amount of resilienei to l'lflltbbfillfitlill'l the load, are instantly restored to normal when relieved ofsueh load and thus restorethe core to normaL position.

Having thus flescrib'ed my invention, what I claim and desire to secure by Letters Patent, is:

1. An airless tire consisting of a casing, an annular core of comparatively soft and rela ti velv resilient material fixed at its inner and outer peripheries to the interior of said casing and having diametrically opposed annular grooves of apmoximately semiellip-' tit-a1 cross section, and a pair of annular reinforcing men'ihers of relatively stiflt 1naterial and approximately elliptical cross section fixed to the grooved sides of said core and the adjacent inner sides of the casing.

2. An airless tire consisting of a casing, an

annular core of comparatively soft and relatively resilient rubber vulcanized at its inner andouter peripheries to the interior of said casing, and a pair of annular reinforein members of relatively stiff rubber vulcanized to the opposite sides of said core and the adjacent inner sides of the casing.

In testimony whereof I afiix my signature in the presence of two witnesses.

' HENRY S. HAWKS.

Witnesses: i

F, G. L. J.

FISCHER, FISCHER. 

